WikiJournal Preprints/Sunflower Trypsin Inhibitor

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Article information

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Enzymatic ActivityEdit

SFTI-1 is the smallest member of the Bowman-Birk family of serine protease inhibitors. With only 14 amino acid residues, it is much smaller than any other Bowman-Birk inhibitor. It has only one active site, whereas most Bowman-Birk inhibitors have two. Despite its name SFTI-1 can inhibit a range of serine proteases, not just trypsin.

Evolution and DistributionEdit

SFTI-1 and two other PDPs are protease inhibitors. The function of other PDPs is unknown, thought it si speculated that they may have defensive properties.

Potential as a Drug ScaffoldEdit

Additional informationEdit


M.F. was supported by the Australian Government’s Research Training Program and a Bruce and Betty Green Postgraduate Research Scholarship.

Competing interestsEdit

The authors have no competing interests.

Ethics statementEdit

Not applicable.